Here is some U.S.A. Census Info that may come in handy. Hope it helps you in some way.

First Census of the United States (1790)Main article: 1790 United States CensusThe 1st Census was taken August 2, 1790. The federal census records for the first census are missing for five states: Delaware, Georgia, Kentucky, New Jersey and Virginia. They were destroyed some time, between the time of the census-taking and 1830. The census estimated the population of the United States at 3,929,214.

Second Census of the United States (1800)Main article: 1800 United States Census The 2nd Census was taken August 4, 1800.

Third Census of the United States (1810)Main article: 1810 United States Census The 3rd Census was taken August 6, 1810.

Fourth Census of the United States (1820)Main article: 1820 United States Census The 4th Census was taken August 7, 1820.

Fifth Census of the United States (1830)Main article: 1830 United States Census The 5th Census was taken June 1, 1830.

Sixth Census of the United States (1840)Main article: 1840 United States CensusThe 6th Census was taken June 1, 1840. The census estimated the population of the United States at 17,100,000. The results were tabulated by 28 clerks in the Bureau of the Census.

Seventh Census of the United States (1850)Main article: 1850 United States Census The 7th Census was taken June 1, 1850. The 1850 census was a landmark year in American census-taking. It was the first year in which the census bureau attempted to count every member of every household, including women, children and slaves. Accordingly, the first slave schedules were produced in 1850. Prior to 1850, census records had only recorded the name of the head of the household and broad statistical accounting of other household members, (exsample:three children under age five, one woman between the age of 35 and 40, etc.)

Eighth Census of the United States (1860)Main article: 1860 United States CensusThe 8th Census estimated the population of the United States at 31,400,000. The results were tabulated by 184 clerks in the Bureau of the Census.This was the first census where the American Indians officially were counted, but only those who had 'renounced tribal rules'. The figure for the nation was 40,000.

Ninth Census of the United States (1870)Main article: 1970 United States CensusThe 9th Census was taken June 1, 1870.

Tenth Census of the United States (1880)Main article: 1880 United States CensusThe 10th Census estimated the population of the United States at 50,189,209. This was the first census that permitted women to be enumerators.

Eleventh Census of the United States (1890)Main article: 1890 United States Census The 11th Census was taken June 2, 1890 because June 1 was a Sunday. The 1890 census announced that the frontier region of the United States no longer existed, and therefore the tracking of westward migration would no longer be tabulated in the census. This trend prompted Fredrick Jackson Turner to develop his milestone Frontier Thesis.The 1890 census was the first to be compiled on a tabulating Machine developed by Herman Hollerith. This introduction of technology reduced the time taken to tabulate the census from seven years for the 1880 census to two and a half years for the 1890 census. The total population of 62,622,250 was announced after only six weeks of processing. Ironically, the public reaction to this tabulation was disbelief, as it was widely believed that the "right answer" was at least 75,000,000.This census is also notable for the fact it is one of only three for which the original data are no longer available. Almost all the population schedules were destroyed as the result of a fire in 1921.

Twelfth Census of the United States (1900)Main article: 1900 United States Census The 12th Census was taken June 1, 1900.

Thirteenth Census of the United States (1910)Main article: 1910 United States Census The 13th Census was taken April 15, 1910.

Fourteenth Census of the United States (1920)Main article: 1920 United States Census The 14th Census estimated the population of the United States at 106,021,537. This was the first census that recorded a population exceeding 100 million.

Fifteenth Census of the United States (1930)Main article: 1930 United States CensusThe fifteenth Census was taken on April 2, 1930, except in Alaska Territory where census-taking began October 1, 1929.

Sixteenth Census of the United States (1940)Main article: 1940 United States Census The 16th Census was taken on April 1, 1940. Because of a 72 year privacy law this census will not be available for public inspection until April 1, 2012.

Seventeenth Census of the United States (1950)Main article: 1950 United States CensusThe 16th Census was taken on April 1, 1950. Because of a 72-year privacy law, this census will not be available for public inspection until April 1, 2022.

Eighteenth Census of the United States (1960)Main article: 1960 United States Census The 18th Census was taken on April 1, 1960. Because of a 72-year privacy law, this census will not be available for public inspection until April 1, 2032.

Nineteenth Census of the United States (1970)Main article: 1970 United States CensusThe 19th Census was taken on April 1, 1970. Because of a 72-year privacy law, this census will not be available for public inspection until April 1, 2042.

Twentieth Census of the United States (1980)Main article: 1980 United States Census The 20th Census was taken on April 1, 1980. Because of a 72-year privacy law, this census will not be available for public inspection until April 1, 2052.

Twenty-first Census of the United States (1990)Main article: 1990 United States Census The 21st Census was taken on April 1, 1990. Because of a 72-year privacy law, this census will not be available for public inspection until April 1, 2062.

Twenty-second Census of the United States (2000)Main article: 2000 United States Census The 22nd Census took place on April 1, 2000. Because of a 72-year privacy law, this census will not be available for public inspection until April 1, 2072.

Twenty-third Census of the United States (2010)Main article: 2010 United States Census The 23rd Census is planned to take place on April 1, 2010. Because of a 72-year privacy law, this census will not be available for public inspection until April 1, 2082.